What should be paid attention to when using concrete admixtures?
Admixtures can be used for almost all kinds of concrete, but suitable admixtures must be selected according to engineering needs, construction conditions and construction technology.…
Admixtures can be used for almost all kinds of concrete, but suitable admixtures must be selected according to engineering needs, construction conditions and construction technology.…
Affected by the conflict between Russia and Ukraine, this year the European electrolytic aluminum production capacity is declining, as Russia this week stop running indefinitely "Nord stream no. 1" gas pipeline, electricity prices in Europe rose shar…
In the summer when the temperature is high and the air humidity is low, due to the accelerated hydration reaction at high temperature, the moisture is easy to evaporate, the mortar fluidity loss is fast and the setting time is shortened, the construc…
The Group of Seven leading economies is discussing imposing a cap on Russian oil prices by imposing restrictions on insurance and shipping, according to people familiar with the matter. The potential mechanism would only allow shipments of Russian c…
The bubbles in concrete above 100μm are called large harmful bubbles, 100 ~ 50μm are called harmful bubbles, 50 ~ 20μm are called low harmful bubbles or harmless bubbles, and those below 20μm are called beneficial bubbles.…
Polycarboxylate superplasticizer has more advantages than traditional naphthalene and aliphatic superplasticizer in mixing high strength grade concrete, but its advantages of high water reduction cannot be brought into full play when the strength is…
Natural river sand has been exhausted after decades of large-scale mining, concrete production enterprises began to use machine-made sand as fine aggregate on a large scale.…
The first method is direct nitridation of titanium powder or TiH2.…
France's annual inflation rate hit 6.1 percent in July 2022, rising further from 5.8 percent in June, the highest since July 1985, the National Institute for Statistics and Economics (Insee) said.…
The secretary general of the Organization of Petroleum Exporting Countries (OPEC) said recently that US economic sanctions against Venezuela have affected global energy supplies. He told Venezuelan media that the ECONOMIC sanctions imposed by the Uni…
Adding polycarboxylate superplasticizer can make the compressive strength of precast concrete reach 40MPa grade at 8h to 18h.…
Zirconia toughened alumina is a kind of ceramic material composed of alumina and zirconia.…
Is boron a metal? Boron powder is not a metal, and boron is a solid non-metal because it does not have the general characteristics of metals. Boron is the only non-metallic element with an outermost layer of less than 4 electrons. The element has bot…
The biggest blow to Europeans in March 2022 will be the soaring energy costs and the doubling of living pressures. For example, some Poles, who have been hit by energy prices, are willing to choose to cut wood, cut wood, and burn cooking smoke for he…
Polyoxyethylene(20)sorbitan monopalmitate is an adjunct to a potion. By dehydration sorbitol fatty acid ester molecule residual hydroxyl and ethylene oxide condensation. About Polyoxyethylene(20)sorbitan monopalmitate: Perspace (20) Sorbitan mono…